The utility model discloses a ladder antiskid, include to press close to the ground panel of ground setting, ground panel bottom surface front end hinges to have to follow through preceding hinge and pastes panel bottom surface swing back and forth's a preceding swing arm forward tightly, swing arm and ground panel kept stopper before the vertically before the hinged end of preceding swing arm had set firmly and has made with the ground spacing cooperation of panel front end, ground panel top surface rear end hinges to have to follow through the back hinge pastes panel top surface swing back and forth's a back swing arm backward tightly, the hinged end of back swing arm has set firmly and has made back swing arm and ground panel keep vertically rear stop block with the ground spacing cooperation in panel rear end. It is rational in infrastructure, can make ladder lower extreme and ground fixed integrative, effectively prevent to skid, need not other people staircase, small in size, convenient to carry, the collapsible occupation space of depositing is little, also can open fast when using, and is simple to use, and helps improving work efficiency.